Valve-bag.



No. 812,455. PATEN'TED FEB. 13, 1906.

J. ROGERS.

VALVE BAG.

APPLICATION FILED FEB. 29. 1904.

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@ @MyfiWf lt( 'UNrTE s'rA'rrEs PATENT OFFICE.

' JOHN ROGERS, OF CLEVELAND, OHIO, AssrenoR TO BATES VALVE BAG ICOMPANY, OF OLEVEL ND, OHIO, A OO P EATION OF WEST VIRGINIA.

VALVE-BAG.

' Specification of Letters l atent.

Patented Feb. 13-, 1906.

Application filed February 29, 1904. Serial No. 195,819;

Theimproved bag, which is usually of paper, but may be of 0 th, has afolded top and ottom and a lateral fillingopening extending between thefolds of the top and in I position to be closed by one of said folds, Iserving as a valve. In the preferred construction the. bag has adiamond-folded top and bottom, the fillin -opening'being closed by oneof the triangu ar primary-folds, this 4 2o valve-fold being reinforcedby a cloth piece which underlies oroverliesdt and extends beyond itsedge.

- Referring to the accompanying. drawings,

Fi ure 1 is a perspective view of a paper 2 5 va ve-bag, showing thefilling-tube inserted and the bag nearly filled. Figa2 is a perspectiveview of the partially-f0 ed upper end of the bag, showing the clothreinforce beneath the triangular valve-fold; and Fig. 3 is 0 atransverse vertical'section through thecorner of the bag)containing thefilling-opening; The paper ag 1, chosen for illustration, 1s

1 closed at both 1ts top and bottom by diamo (1 folds comprising the'trian' 'ular primary folds 2 3 and the finishing fol s 4 5. Inmakingthe bag the primer folds" 2 3are first turned down and a clot or paperreinforcin iece 6 is inserted beneath or over the fo 3, its sidesextending out over the finishing folds 4 5, to which it is preferablypasted. The inner finishing fold 4 is then turned down and pasted uponthe rimary fold 2, leaving the other primary fo (1 3 en'- tirely free.The outer finishingfold 5 is then 4'5 turned down and pasted across thefold 4.

The reinforcingpiece 6 (shown as of cloth) led opening Witnesses:

is preferably of such width as to extend some distance beyond the edgeof the valve-fold 3,

thus both strengthening this fold and con stituting asupplemental valve.

In filling the bag the primary fold 3 and cloth reinforce 6 aredepressed to leave an opening laterally through this opening. When thebag is. filled and reversed, the weight of the material forces thevalve-fold 3 an the cloth piece 6 against the finishing folds-4 '5, thuspositively and securely closing the fillingopemng.

The utilization of one of the primary folds 'as a valve makes itpossible to furnish a valve-bag at mlmmum cost, no extra material beingrequired, as in prior constructions. The rovision of a filling-openingbetween the olds malies it unnecessary to weaken the be. by cutting anopening through it.

The fil ing-tube can be easily and qluickly inserted between the primaryvalve-f0 d and the finishing folds, and when the bag is filled 7.between them and the finishing folds 4v 5, and the filling-tube 8 isinserte and reversed the valve end, then constitut-.

ing a bottom, is precisely similar in appearance and strength to that ofthe ordinary bag. A

In a co ending application, Serial 0. 195,818, 0 even date herewith Iclaim,

broadly the feature of the fillingopening adjacent to and in position tobe closed by one of the folds of the top. Iclaim A paper valve-bag'havindiamond-folded closures at each end, the olds being permanently secured,and a filling-opening in combination with a valve-like tube at or nearone corner of the bag.

In testimony whereof I aflix my signature v in presence of twowitnesses.

fJoHN ROGERS.

FRANK STONE, I A. H. GARDNE

